Equity (Schedule of Valuation Assumptions) (Details) (USD $)	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Black-Scholes weighted average assumptions:
Expected dividend rate	0.00%	0.00%
Expected stock price volatility rate	95.70%	97.10%
Risk-free interest rate	1.70%	0.90%
Expected term (in years)	6 years	6 years
Weighted average grant date fair value per share of stock option granted (in dollars per share)	$ 3.92	$ 3.65